I'm 15 and I've had lower back pain for as long as I can remember. I went to get it checked when I was 9 and I was too scared to say anything so my dad had to talk for me. When the doctor was pressing on my back it was tender where the pain is but I didn't say anything. The pain is constant but I don't feel it when I move around. It is most noticeable when I am sitting for a while or laying down. There is no pain in my legs. I have no clue what is wrong and everything I've looked up doesn't seem to match. Any help???